VILLAGE OF MCARTHUR WWTP
NPDES ID: OH0048241
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 5 effluent violations.
Violations
May 31, 2026
BOD, carbonaceous [5 day, 20 C]
91% over limit
Discharged 89 kg/d against a permitted limit of 46.7 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
355% over limit
Discharged 340 kg/d against a permitted limit of 74.8 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
287% over limit
Discharged 650 kg/d against a permitted limit of 168 kg/d (WKLY MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
39% over limit
Discharged 170 kg/d against a permitted limit of 122 kg/d (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
47% over limit
Discharged 7.49 mg/L against a permitted limit of 5.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
28% over limit
Discharged 12.2 kg/d against a permitted limit of 9.54 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (5 months ago)
Last confirmed
September 15, 2026 (5 days ago)